Differentiating between pollutants build-up on roads and roofs: Significance of roofs as a stormwater pollutant source

Liu, An, Miguntanna, Nadeeka Sajeewani, Miguntanna, Nandika Prasadani, Egodawatta, Prasanna, & Goonetilleke, Ashantha (2016) Differentiating between pollutants build-up on roads and roofs: Significance of roofs as a stormwater pollutant source. CLEAN - Soil, Air, Water, 44(5), pp. 538-543.

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Abstract

Impervious surfaces in an urban catchment are the primary stormwater pollutant contributing areas. Appropriate treatment of stormwater runoff from these impervious surfaces is essential to safeguard the urban water environment. While urban roads have received significant research attention in this regard, roofs have not been well investigated. Key pollutant processes such as build-up on roads and roofs can be different due to the different surface characteristics. This entails different treatment strategies being needed for road and roofs. The research study characterized roof pollutants build-up by differentiating with road surfaces. It was noted that pollutants are more highly concentrated on particles and particularly finer particles in the case of roof surfaces, compared to road surfaces. Additionally, pollutants built-up on roof surfaces tend to be relatively more variable from one day to another in terms of pollutant loads. These results highlight the significance of roofs as a stormwater pollutant source and the important need for a specific stormwater treatment strategy rather than the application of a combined approach for treating stormwater runoff from both, roads and roofs.

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ID Code: 93973
Item Type: Journal Article
Refereed: Yes
Keywords: Pollutants build-up, PROMETHEE and GAIA, Stormwater pollutant processes, Stormwater quality, Stormwater treatment design
DOI: 10.1002/clen.201500227
ISSN: 1863-0669
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2016 WILEY-VCH Verlag GmbH & Co. KGaA
Copyright Statement: This is the peer reviewed version of the following article: Liu, A., Miguntanna, N. S., Miguntanna, N. P., Egodawatta, P. and Goonetilleke, A. (2016), Differentiating Between Pollutants Build-Up on Roads and Roofs: Significance of Roofs as a Stormwater Pollutant Source. Clean Soil Air Water, 44: 538–543, which has been published in final form at https://doi.org/10.1002/clen.201500227. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Deposited On: 21 Mar 2016 23:13
Last Modified: 20 May 2016 10:35

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